print("hello")
#
# name = input("请输入用户名：")
# print("我的名字是{}".format(name))
# xq = input("请输入兴趣")
# print("我的兴趣{}".format(xq))

# name = input("请输入用户名：")
# xq = input("请输入兴趣")
# print("我的名字是{}，我的兴趣是{}".format(name, xq))
# for i in range(20):
#     print(i)


# f = open("zs123.txt","w")
# for i in range(20):
#     print("#{}".format(i),end="/",file=f)
# # # f.close()
# # print(float(10)
# x = "20"
# x.isalnum()
#
# aa = "12345631431@!daad222522"
# for i in aa:
#     if not i.isalnum():
#         print("{}是特殊符号".format(i))
#         #continue
#     elif  i.isalpha():
#         print("{}是字母".format(i))
#
#         #continue
#     elif  i == 0:
#         print("0")
#     elif int(i)%2 == 1:
#       print("{}是单数".format(i))
#     elif int(i)%2 == 0:
#       print("{}是偶数".format(i))
#     else:
#       print("不是数字")
# a=
# a = "zhangsi"
# b = 'zzz'
# c = 'ddd'
# print("%s 和%s 和 %s "%(a,b,c))
print('{0:0>4}'.format(109988))
li = ('a','b','c')
print("{0[0]}/{0[1]}".format(li))
a = ["aa","bb",20]
b = 20
print("{[1]}{}".format(a,b))